CIRCLES GRADE 9

Circles with exactly the same radius measures are

• Similar Circles

• Concentric Circles

• Congruent Circles

• Semicircle

Equal chords subtend _________ angles at the centre.

• different angle

• equal

If two chords subtend equal angle at the centre then the chords are ______________

• Equal

• different

In circle X, chords AB and CD are congruent and AB is 9 units from X. Find the distance from CD to X.

• 4.5 units

• 9 units

• 18 units

• cannot tell

The region between the a chord and either of the arcs is called____

• An arc
• A sector
• A segment
• A semi

Segments with endpoints on a circle are called _____.

• arcs
• radii
• chords
• polygons

Tags

CCSS.HSG.C.A.2

CCSS.HSG.C.A.3

This is a picture of ___________.

• Minor Arc
• Major Arc
• Semi-Circle
• Central Angle

Tags

CCSS.HSG.C.A.2

CCSS.HSG.C.B.5

How many chords?

• 1
• 2
• 3
• none

Tags

CCSS.HSG.C.A.2

What is the part of the circle highlighted in red called?

• semi-circle arc
• major arc
• minor arc
• sector

Tags

CCSS.HSG.C.B.5

Which of the following names a radius?

• segment AC
• segment DB
• segment AB
• segement BC

Tags

CCSS.HSG.C.A.2